Medicare Coverage Advisory Committee (MEDCAC). The Medicare Evidence Development & Coverage Advisory Committee (MEDCAC) was established to provide independent guidance and expert advice to CMS on specific clinical topics. The MEDCAC is used to supplement CMS’ internal expertise and to allow an unbiased and current deliberation of “state of the art” technology and science. The MEDCAC reviews and evaluates medical literature, technology assessments, and examines data and information on the effectiveness and appropriateness of medical items and services that are covered under Medicare, or that may be eligible for coverage under Medicare. The MEDCAC judges the strength of the available evidence and makes recommendations to CMS based on that evidence.